Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual mostra para 2012/13 quando o 2007/08 não é realizado, e o 2011/12 não é classificado?
 ###Tabelas: CREATE TABLE matches_and_goals_scored_at_world_cup_and_olympic_tournaments (matches_and_goals_scored_at_world_cup_and_olympic_tournaments_id AUTO_INCREMENT PRIMARY KEY, Match VARCHAR, Date VARCHAR, Location VARCHAR, Lineup VARCHAR, Result VARCHAR, Competition VARCHAR) CREATE TABLE character_appearances (character_appearances_id AUTO_INCREMENT PRIMARY KEY, Character VARCHAR, Played by VARCHAR, Season 1 INT, Season 2 INT, Season 3 INT, Season 4 INT, First Appearance VARCHAR) CREATE TABLE population_and_distribution (population_and_distribution_id AUTO_INCREMENT PRIMARY KEY, Year INT, Numer of Jamaicans granted British citizenship INT, Naturalisation by residence INT, Naturalisation by marriage INT, Registration of a minor child INT, Registration by other means INT) CREATE TABLE specimen_data (specimen_data_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Discovered INT, Museum VARCHAR, Museum city VARCHAR, Discoverer VARCHAR, Formation VARCHAR, Location VARCHAR) CREATE TABLE performance_and_rankings_timeline (performance_and_rankings_timeline_id AUTO_INCREMENT PRIMARY KEY, 2004/ 05 VARCHAR, 2007/ 08 VARCHAR, 2010/ 11 VARCHAR, 2011/ 12 VARCHAR, 2012/ 13 VARCHAR)  
SELECT 2012/ 13 FROM performance_and_rankings_timeline WHERE 2007/ 08 = not held AND 2011/ 12 = non-ranking